package cn.edu.hqu.cst.lzs.homework_5;

import androidx.appcompat.app.AppCompatActivity;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    public static int MODE=MODE_PRIVATE;
    public static final String PREFERENCE_NAME="SaveSetting";
    Button btnLogin;
    EditText etAccount,etPassword;
    SharedPreferences sharedPreferences;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnLogin=findViewById(R.id.btn_login);
        etAccount=findViewById(R.id.account_input);
        etPassword=findViewById(R.id.password_input);
        sharedPreferences=getSharedPreferences(PREFERENCE_NAME, MODE);

        readAccount();
    }

    public void readAccount() {
        String account = sharedPreferences.getString("account", "");
        String password = sharedPreferences.getString("password", "");

        etAccount.setText(account);
        etPassword.setText(password);
    }

    @Override
    public void onClick(View v) {
        if (v.getId() == R.id.btn_login) {
            String account = etAccount.getText().toString();
            String password = etPassword.getText().toString();

            SharedPreferences.Editor editor=sharedPreferences.edit();

            editor.putString("account", account);
            editor.putString("password", password);
            editor.apply();
            Toast.makeText(MainActivity.this, "登录成功", Toast.LENGTH_SHORT).show();
        }
    }
}